Concrete-block machine.



A, PIERCE. CONCRETE BLOCK MACHINE.

APPLICATION FILED mm 29,1907.

Patented 0ct.20,'190s.

[NVENTOR WITNESSES KM X/lorney UNITED sTATEs PATENT OFFICE.

ARTHUR PIERCE, OF SEVILLE, OHIO, ASSIGNOR TO JOHN P. HEOKMAN, OF GRESTON, OHIO.

CONCRETE-BLOCK MACHINE Specification of Letters Patent.

Patented Oct. 20, .1908.

Application filed June 29, 1907. Serial No. 381,471.

To all whom it may concern:

Be it .known that I, ARTHUR PIERCE, a citizen of the United States, residing at Seville, in the county of Medina and State of Ohio, have invented certain new and useful Improvements in Concrete-Block Machines, of, which the following is a specification.

My invention relates to concrete block machines and particularly contemplates the provision of a simple and inexpensive mechanism comprising essentially a stationary frame carrying a plurality of cores rigidly secured thereto, and a mold body movable toward and away from said cores upon a portion of said stationary frame, together with suitable means for moving said mold body.

My invention resides specifically in the following features of construction, arrangement and operation as will be hereinafter described with reference to the accompanying drawings in which like numerals are used to indicate like parts, and in which,

Figure 1 is an end elevation of my improved block machine, Fig. 2 is the front elevation thereof, partly broken away to show an interior of the mold box, Fig. 8 is a vertical sectional view on the line 33 of Fig. 2, and Fig. 4 is a horizontal sectional view on the line 4-4 of Fig. 3.

In the practical embodiment of my invention I provide a stationary frame comprising the vertical side members 1 and horizontal members 2 extending therefrom and provided with supporting legs 3 adjacent their forward ends connected between themselves and with the lower portions 4 of said vertical side members 1 by means of brace members 5. The vertical side members 1 are constructed of angle beams as shown in Fig. 4 supporting between themselves above the horizontal members 2 a core frame 6 having a plurality of cores 7 extending therefrom and provided with braces 8 therein. The cores 7 as shown, extend from their frame 6 between the horizontal members 2 above and in parallelism with the same.

The mold body 9 comprises a front frame 10 carrying the pallet board 11, and end members 12 hinged at 18 to said front frame 10. The mold body 9 is supported by the transverse guide members 14 arranged between and within the longitudinal slots 15 of the horizontal stationary members 2 of bers 14. The mold base 18 is also hinged to the members 16 and 17 by means of its pleces 18, and is provided with lugs 19 projecting upwardly therefrom to prevent the end members 12 of the mold body from spreading. The mold body 9 is further provided with a skeleton rear frame 20 fitting about the cores 7, to withdraw the molded frame from said cores upon the movement of the mold body away from the same. The skeleton rear frame 20 is connected to the end members 12 of the mold body by catches 21 locked about projections 22 thereof.

The means for moving the mold body 9 to and from the cores 7 comprises pivotally mounted handle members 23 connected to the forward guide member 14 by means of the pivotal connecting rods 24 extending centrally therefrom.

The operation of my improved mold, is

as follows, the position shown in Fig. 1 being taken as a starting point. The operator first slides the'mold body 9 rearwardly upon the cores 7 by means of the handles 23, and the material is then placed within said mold body and firmly tamped. will thus assume the position shown in Fig. 3 and the mold body 9 will be again operated through the handle 23 moving the same away from the cores 7, the skeleton rear frame 20 withdrawing the material from about said cores without destroying the block.

l/Vhen the mold body 9 has been drawn sufficiently away from the cores 7 the catch 21 is raised and the pallet 11, front frame 10 and end members 12 are swung downwardly upon their pivots 1G resting upon the horizontal side members 2 and fully exposing the molded block.

Having thus fully described my invention, I claim:

1. In a concrete block machine, the combination with a stationary upright frame having suitably supported horizontal, longitudinally slotted members extending therefrom, said frame having a plurality of mold cores rigidly secured thereto, and extending therefrom above and parallel with said members, of a mold body mounted to move to and from said cores, spaced transverse members extending between said slotted members and projecting within the slots thereof, spacing The mechanism members rigidly connecting said transverse members and provided with vforwardly pro.- jecting ends, said mold body comprising a base plate, and a skeleton front frame hinged together and to said projecting ends of said spacing members, and'end plates hinged to said skeleton frame and extending upon said base plate, a removable pallet board freely supported in said body upon said skeleton frame, a skeleton plate ifitting about said cores, means for locking said rear skeleton plate :to said end platesandineanslengaging one-of said transverse members for moving said mold body, substantiallyas described.

2. In a concrete block machine, vthe combination with a stationary upright frame having suitably supported :hori-zontal, longitudinally slotted members, extendingtherefrom, said frame havinga plurality of mold cores secured thereto and extending. therefrom, above and parallel with, said slotted members, of a mold body mounted to move to and from said cores, spaced transverse members extending between said slotted members and projecting within the slots thereof, spacing members rigidly connecting said transverse members, and ,provided with forwardly projecting ends, said mold body comprisingza base plate, and a skeleton frame hinged together to said projecting ends of said spacing members, and end plates hinged to said skeleton frame extending upon said base plate, said-base plate having upwardly projecting lugs extending exteriorly of the lower rear edge ofsaidvend plates to prevent the same from spreading, a removable pallet board freely supportedin said body upon said skeleton frame, a rear skeleton aplate fitting about said cores, :means for locking said :rear skeleton plate :tosaid end plates, and aneans engaging one ofsaid transverse,members.lfor moving said mold body, substantially as described.

?In testimony avhereof I aflix my signature in presence of two witnesses.

ARTHUR PIER GE.

\Vitnesses CHAS. A. TENNEY, W. .I. MoGLnxEN. 

